查詢資料庫中表的資訊

  SELECT 表名=case when a.colorder=1 then d.name else '' end,
       表說明=case when a.colorder=1 then isnull(f.value,'') else '' end,
       欄位序號=a.colorder,
       欄位名=a.name,
       標識=case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end,
       主鍵=case when exists(SELECT 1 FROM sysobjects where xtype='PK' and name in (SELECT name FROM sysindexes WHERE indid in(SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid))) then '√' else '' end,
       型別=b.name,
       佔用位元組數=a.length,
       長度=COLUMNPROPERTY(a.id,a.name,'PRECISION'),
       小數位數=isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),
       允許空=case when a.isnullable=1 then '√'else '' end,
       預設值=isnull(e.text,''),
       欄位說明=isnull(g.[value],'')
   FROM syscolumns a
       left join systypes b on a.xtype=b.xusertype
       inner join sysobjects d on a.id=d.id and d.xtype='U' and d.name<>'dtproperties'
       left join syscomments e on a.cdefault=e.id
       left join sysproperties g on a.id=g.id  and a.colid=g.smallid
       left join sysproperties f on d.id=f.id and f.smallid=0
    --where d.name='此處可新增要查詢的表名'
   Order by a.id,a.colorder